Hello. I would like to calculate the least cost path for hunter access in QGIS. I want to calculate it for travel speed on different types of roads, and land use resistance (which would include forest, crops and pasture land cover types). How would I do this?
To calculate the least cost path in QGIS for hunter access, including travel speed and resistance based on different land cover types, you’ll follow these general steps:
For more complex setups, you can define cost for each land cover class using “reclassify by table” tools, or adjust resistance based on season, slope, etc. It’s flexible for field and ecological research!
1. Assign costs → set road speeds (low = fast) and land-use resistance values.
2. Rasterize & reclassify → roads and land cover into a single cost raster (via Raster Calculator).
3. Run cost-distance → GRASS r.cost with hunter start point(s).
4. Extract least-cost path → GRASS r.drain (gives path line to destination
- Badges
- Science topic
- Similar topics
- Methodology
- Research Methodology
- Research Papers